Merge pull request #2348 from murgatroid99/node_version_0.10

Bumped Node.js package version to 0.10.0

src/node/package.json

 {
   "name": "grpc",
-  "version": "0.9.1",
+  "version": "0.10.0",
   "author": "Google Inc.",
   "description": "gRPC Library for Node",
   "homepage": "http://www.grpc.io/",